Gas or gasolene burner.



PATENTED SEPT. 29, 1903.

Mi E. .QHR'NSTEDT- GAS 0R GAsoLBNB BURNER. APPLIUATIONV'HLEIIJ 00T. 17, 1902.

Y no MODEL.

T. EM

UNITED STATES l Patented September 29, 1903.

PATENT QFFICE;

GAS OR GASOLENE BURNER.-

SEEQIFICATION forming part of Letters Patent No. 740,307, dated September 29, 1903.

Application led October 17, 1902. Serial No. 127,716. (No model .stoves and the like; and the primary object of the same is to provide a simple and effective burner which is so constructed that the weight of the article or device to be heated placed thereon will open a valve to admit gas to the burner and one wherein the removal of the weight of the article or device being heated from the burner will cause the valve to-be closed, thereby economically using the gas.

A further object of the invention is to provide in an automatic burner of the character rset forth a supplemental burner or pilot which remains continuously ignited to .serve as a means for lighting the main burner when the gas is admitted to the latter withoutunnecessarily wasting the gas when the apparatus is not in actual heating use or when one article is removed therefrom before another is placed thereon, and also by this means relighting of the apparatus is avoided.

With these and other objects and advantanges in view the invention consists in the construction andv arrangement of the several parts, which will be more fully hereinafter described and claimed.

In the drawings, Figurel is a vertical longitudinal section of the improved burner, showing the valve closed. Fig. 2 is a similar view showing the valve open and in condition to admit gas to the burner-chamber.

Similar numerals of reference are employed to indicate corresponding parts in the views.

1 designates a gas or gasolene supply or feed pipe which extends from a suitable gassnpply source and is connected to the burnerbody 2, having the mixing-chamber 3. burner proper comprises a top or body section" 4, let down into the mixing-chamber 8 and provided with a convex lower surface, as clearly shown in the drawings. The burner also comprises an annular shell-rim 5, of arc- The l nate form, provided with plurality of outlet-openings 6. The body-section 4 is secured to the main body of the burner at intervals by screws or other like devices '7, passing ver- 55 tically through the rim and interlocking flanges of the body-section and the upper portion of the main body of the burner, the outer edges of the rim 5 resting upon the upper edge of the burner-body. The body 2 is 6o open at its upper end for convenience in the assemblage of the body-section et of the burner and an accurate disposition of the rim 5 on the upper edgevof the burner-body. The section 4 is of such dimensions as to form a gas- 65 passage or annular duct Sbetween the same and the adjacent wall of the burner-body 2 and also to leavethe lower portion of the chamber 3 free to receive the gas or gasolene. The passage or duct 8 opens directly intotheannular 7o space or supplemental chamber 9, formed by the arcuate rim 5, through which the gas has anunretarded flow, causing it to exit equally through all the'openings 6. The section LLL is provided with an opening 10, extending ver- 75 the burner-body, the-stem 14: having a disk 85 or plate 15 at its lower end, which rests upon and is upheld by a coiledspring 16, mounted in a box or cage 17, extending downward\ from and attached to the burnerbody, a

spring-seat 18 in the form of a plate or cross- 9o bar being arranged at the bottom of the box or cage to sustain the spring 16. The spring 16 normally upholds the stemLL and rest 12 in the position illustrated in Fig. 1. Air-inlet ports 18 are formed at suitable points in g5 the burner-body, leading into the mixingchamber for supplying the requisite amount of air. Y Y

. Above the burner a suitable grate or grid 19 is disposed and held by means well known Ioo The lower 8o upon the rest 12 will be supported by the grid when the post and stem are depressed, and thereby relieve the latter devices of the direct Weight after they have performed their' such size and weight as to always seek itsnormal position when free to do so. This valve is normally disposed over the port 2O and shuts olf communication between the chamber 3 and the pipe 1. ever, as the stem 14 is depressed by the weight imposed upon the rest 12 the tapered portion of the post strikes or comes in coutact with the valve and pushes it to one side, as shown in Fig. 2, thereby opening the port 2O and establishing communication between the pipe 1 and the chamber 3, permitting the gas to enter the latterand supply the burner. As soon as the weight is removed from the rest 12 the stem 14 assumes the normal position (.shown in Fig. 1) and the valveimmediately closes. The improved device is also supplied with an auxiliary or pilot burner which remains ignited continuously during the period that the burner is in use, and for this purposelemployabranch supply-pipe 22, which enters the burner-body above the main supply-pipe 1,where it delivers gas orgasolene to a small nipple 23, arranged at one side of and in close proximity to the shell 5. The flow of gas through the branch pipe 22 may be entirely cnt off by means .of a shut-off cock or valve 24. When said. cock or valve is opened, the gas passesv through the pipe 22 and ignites at the nipple 23. When it is desired to prepare the improved burner for use, the valve or shut-o cock 24 is opened to allow the gas to flow through the pipe 22 to the nipple or tip 23, Where it is ignited. It will be observed that the main burner will bet-unaffected by this supplemental or pilot burner until the valve 21 is opened in the manner above explained, whereupon the main burner l will become ignited and so remain until the .flow of gas is shut oi` from the main pipe or conduit 1. As soonl as the valve 21 closes the As soon, how-v of gas will result and convenience in the mode of igniting the main burner will be atorded.

Having thus described the invention, what is claimed as new is 1. In a device of the class set forth, the combination of a chamber with a concave bottom and having a burner disposed in the top thereof, the chamber being provided with a supplyconduit communicating with the bottom, a gravitating valve loosely mounted on the concave bottom and adapted to open and close communication between the supply-conduit and the chamber, and a vertically-arranged spring-actuated device movable through the center of the chamber and having a portion. adapted to contact with the said valve, the vertically-movable device being depressed by the weight of an article placed thereon to automatically open the valve.

2. A device of the class set forth having a chamber with a concave bottom, a valve loosely mounted on said bottom to control the supply of gas to the chamber,and a device verticallymovable through the chamber and having a portion adapted to contact with said valve and permit gas to enter the burner.

3. A device of the class set forth, comprising a chamber with an upper burner, a rim having openings therethrough, and a concave bottom, a gravitating valve controlling the supply of gas tothe burner and freely mov-l able over said bottom, a vertically-movable post extending through the center of the 'centrally through the said chamber, a rest connected with said post and adapted to be operated by an article placed over the burner, a branch pipe leading from the main supplypipe to the burner-body, a burner-tip in communication with the branch pipe, and a shutoff cock controlling the branch pipe.

In testimony whereof I aix my signature in presence of two witnesses.

MARTIN E. oHRNsTEDT.

Witnesses:

GEORGE HENRY FRIcx, GEO. M. YOUNG. 

